QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem912768
USGS iscgem912768
23 Apr 1919, 08:05
66 km WNW of Pangai, Tonga
A magnitude 6.3 mw earthquake at 35 km depth.
Published location
Where is 66 km WNW of Pangai, Tonga?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-19.677000, -174.969000
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What the numbers mean
Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.
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Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.
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Catalog fields and provenance
Event ID
iscgem912768
Coordinates
-19.677, -174.969
Network
iscgem
Significance
601